include/bbcode.php

   1 <?php
   2 use \Friendica\Core\Config;
   3
   4 require_once("include/oembed.php");
   5 require_once('include/event.php');
   6 require_once('include/map.php');
   7 require_once('mod/proxy.php');
   8 require_once('include/Contact.php');
   9 require_once('include/plaintext.php');
  10
  11 function bb_PictureCacheExt($matches) {
  12         if (strpos($matches[3], "data:image/") === 0)
  13                 return ($matches[0]);
  14
  15         $matches[3] = proxy_url($matches[3]);
  16         return "[img=".$matches[1]."x".$matches[2]."]".$matches[3]."[/img]";
  17 }
  18
  19 function bb_PictureCache($matches) {
  20         if (strpos($matches[1], "data:image/") === 0)
  21                 return ($matches[0]);
  22
  23         $matches[1] = proxy_url($matches[1]);
  24         return "[img]".$matches[1]."[/img]";
  25 }
  26
  27 function bb_map_coords($match) {
  28         // the extra space in the following line is intentional
  29         return str_replace($match[0],'<div class="map"  >' . generate_map(str_replace('/',' ',$match[1])) . '</div>', $match[0]);
  30 }
  31 function bb_map_location($match) {
  32         // the extra space in the following line is intentional
  33         return str_replace($match[0],'<div class="map"  >' . generate_named_map($match[1]) . '</div>', $match[0]);
  34 }
  35
  36 function bb_attachment($Text, $simplehtml = false, $tryoembed = true) {
  37
  38         $data = get_attachment_data($Text);
  39         if (!$data)
  40                 return $Text;
  41
  42         if (isset($data["title"])) {
  43                 $data["title"] = strip_tags($data["title"]);
  44                 $data["title"] = str_replace(array("http://", "https://"), "", $data["title"]);
  45         }
  46
  47         if (((strpos($data["text"], "[img=") !== false) OR (strpos($data["text"], "[img]") !== false)) AND ($data["image"] != "")) {
  48                 $data["preview"] = $data["image"];
  49                 $data["image"] = "";
  50         }
  51
  52         if ($simplehtml == 7) {
  53                 $title2 = $data["title"];
  54
  55                 $test1 = trim(html_entity_decode($data["text"],ENT_QUOTES,'UTF-8'));
  56                 $test2 = trim(html_entity_decode($data["title"],ENT_QUOTES,'UTF-8'));
  57
  58                 // If the link description is similar to the text above then don't add the link description
  59                 if (($data["title"] != "") AND ((strpos($test1,$test2) !== false) OR
  60                         (similar_text($test1,$test2) / strlen($data["title"])) > 0.9))
  61                         $title2 = $data["url"];
  62                 $text = sprintf('<a href="%s" title="%s" class="attachment thumbnail" rel="nofollow external">%s</a><br />',
  63                                 $data["url"], $data["title"], $title2);
  64         } elseif (($simplehtml != 4) AND ($simplehtml != 0))
  65                 $text = sprintf('<a href="%s" target="_blank">%s</a><br>', $data["url"], $data["title"]);
  66         else {
  67                 $text = sprintf('<span class="type-%s">', $data["type"]);
  68
  69                 $bookmark = array(sprintf('[bookmark=%s]%s[/bookmark]', $data["url"], $data["title"]), $data["url"], $data["title"]);
  70                 if ($tryoembed)
  71                         $oembed = tryoembed($bookmark);
  72                 else
  73                         $oembed = $bookmark[0];
  74
  75                 if (strstr(strtolower($oembed), "<iframe "))
  76                         $text = $oembed;
  77                 else {
  78                         if (($data["image"] != "") AND !strstr(strtolower($oembed), "<img "))
  79                                 $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a><br />', $data["url"], proxy_url($data["image"]), $data["title"]);
  80                         elseif (($data["preview"] != "") AND !strstr(strtolower($oembed), "<img "))
  81                                 $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-preview" /></a><br />', $data["url"], proxy_url($data["preview"]), $data["title"]);
  82
  83                         if (($data["type"] == "photo") AND ($data["url"] != "") AND ($data["image"] != ""))
  84                                 $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a>', $data["url"], proxy_url($data["image"]), $data["title"]);
  85                         else
  86                                 $text .= $oembed;
  87
  88                         if (trim($data["description"]) != "")
  89                                 $text .= sprintf('<blockquote>%s</blockquote></span>', trim(bbcode($data["description"])));
  90                 }
  91         }
  92         return $data["text"].$text.$data["after"];
  93 }
  94
  95 function bb_remove_share_information($Text, $plaintext = false, $nolink = false) {
  96
  97         $data = get_attachment_data($Text);
  98
  99         if (!$data)
 100                 return $Text;
 101
 102         if ($nolink)
 103                 return $data["text"].$data["after"];
 104
 105         $title = htmlentities($data["title"], ENT_QUOTES, 'UTF-8', false);
 106         $text = htmlentities($data["text"], ENT_QUOTES, 'UTF-8', false);
 107         if ($plaintext OR (($title != "") AND strstr($text, $title)))
 108                 $data["title"] = $data["url"];
 109         elseif (($text != "") AND strstr($title, $text)) {
 110                 $data["text"] = $data["title"];
 111                 $data["title"] = $data["url"];
 112         }
 113
 114         if (($data["text"] == "") AND ($data["title"] != "") AND ($data["url"] == ""))
 115                 return $data["title"].$data["after"];
 116
 117         // If the link already is included in the post, don't add it again
 118         if (($data["url"] != "") AND strpos($data["text"], $data["url"]))
 119                 return $data["text"].$data["after"];
 120
 121         $text = $data["text"];
 122
 123         if (($data["url"] != "") AND ($data["title"] != ""))
 124                 $text .= "\n[url=".$data["url"]."]".$data["title"]."[/url]";
 125         elseif (($data["url"] != ""))
 126                 $text .= "\n".$data["url"];
 127
 128         return $text."\n".$data["after"];
 129 }
 130
 131 function bb_cleanstyle($st) {
 132   return "<span style=\"".cleancss($st[1]).";\">".$st[2]."</span>";
 133 }
 134
 135 function bb_cleanclass($st) {
 136   return "<span class=\"".cleancss($st[1])."\">".$st[2]."</span>";
 137 }
 138
 139 function cleancss($input) {
 140
 141         $cleaned = "";
 142
 143         $input = strtolower($input);
 144
 145         for ($i = 0; $i < strlen($input); $i++) {
 146                 $char = substr($input, $i, 1);
 147
 148                 if (($char >= "a") and ($char <= "z"))
 149                         $cleaned .= $char;
 150
 151                 if (!(strpos(" #;:0123456789-_.%", $char) === false))
 152                         $cleaned .= $char;
 153         }
 154
 155         return($cleaned);
 156 }
 157
 158 function stripcode_br_cb($s) {
 159         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
 160 }
 161
 162 function bb_onelinecode_cb($match) {
 163         if (strpos($match[1],"<br>")===false){
 164                 return "<key>".$match[1]."</key>";
 165         }
 166         return "<code>".$match[1]."</code>";
 167 }
 168
 169 function tryoembed($match){
 170         $url = $match[1];
 171
 172         // Always embed the SSL version
 173         $url = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
 174                                 array("https://www.youtube.com/", "https://player.vimeo.com/"), $url);
 175
 176
 177         $o = oembed_fetch_url($url);
 178
 179         if (!is_object($o))
 180                 return $match[0];
 181
 182         if (isset($match[2]))
 183                 $o->title = $match[2];
 184
 185         if ($o->type=="error") return $match[0];
 186
 187         $html = oembed_format_object($o);
 188         return $html;
 189
 190 }
 191
 192 // [noparse][i]italic[/i][/noparse] turns into
 193 // [noparse][ i ]italic[ /i ][/noparse],
 194 // to hide them from parser.
 195
 196 function bb_spacefy($st) {
 197   $whole_match = $st[0];
 198   $captured = $st[1];
 199   $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
 200   $new_str = str_replace($captured, $spacefied, $whole_match);
 201   return $new_str;
 202 }
 203
 204 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
 205 // now turns back and the [noparse] tags are trimed
 206 // returning [i]italic[/i]
 207
 208 function bb_unspacefy_and_trim($st) {
 209         $whole_match = $st[0];
 210         $captured = $st[1];
 211         $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
 212         return $unspacefied;
 213 }
 214
 215 function bb_find_open_close($s, $open, $close, $occurance = 1) {
 216
 217         if ($occurance < 1)
 218                 $occurance = 1;
 219
 220         $start_pos = -1;
 221         for ($i = 1; $i <= $occurance; $i++) {
 222                 if ( $start_pos !== false) {
 223                         $start_pos = strpos($s, $open, $start_pos + 1);
 224                 }
 225         }
 226
 227         if ( $start_pos === false) {
 228                 return false;
 229         }
 230
 231         $end_pos = strpos($s, $close, $start_pos);
 232
 233         if ( $end_pos === false) {
 234                 return false;
 235         }
 236
 237         $res = array( 'start' => $start_pos, 'end' => $end_pos );
 238
 239         return $res;
 240 }
 241
 242 function get_bb_tag_pos($s, $name, $occurance = 1) {
 243
 244         if ($occurance < 1)
 245                 $occurance = 1;
 246
 247         $start_open = -1;
 248         for ($i = 1; $i <= $occurance; $i++) {
 249                 if ( $start_open !== false) {
 250                         $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
 251                 }
 252         }
 253
 254         if ( $start_open === false)
 255                 return false;
 256
 257         $start_equal = strpos($s, '=', $start_open);
 258         $start_close = strpos($s, ']', $start_open);
 259
 260         if ( $start_close === false)
 261                 return false;
 262
 263         $start_close++;
 264
 265         $end_open = strpos($s, '[/' . $name . ']', $start_close);
 266
 267         if ( $end_open === false)
 268                 return false;
 269
 270         $res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
 271                       'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
 272         if ( $start_equal !== false)
 273                 $res['start']['equal'] = $start_equal + 1;
 274
 275         return $res;
 276 }
 277
 278 function bb_tag_preg_replace($pattern, $replace, $name, $s) {
 279
 280         $string = $s;
 281
 282         $occurance = 1;
 283         $pos = get_bb_tag_pos($string, $name, $occurance);
 284         while ($pos !== false && $occurance < 1000) {
 285
 286                 $start = substr($string, 0, $pos['start']['open']);
 287                 $subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
 288                 $end = substr($string, $pos['end']['close']);
 289                 if ($end === false)
 290                         $end = '';
 291
 292                 $subject = preg_replace($pattern, $replace, $subject);
 293                 $string = $start . $subject . $end;
 294
 295                 $occurance++;
 296                 $pos = get_bb_tag_pos($string, $name, $occurance);
 297         }
 298
 299         return $string;
 300 }
 301
 302 if (! function_exists('bb_extract_images')) {
 303 function bb_extract_images($body) {
 304
 305         $saved_image = array();
 306         $orig_body = $body;
 307         $new_body = '';
 308
 309         $cnt = 0;
 310         $img_start = strpos($orig_body, '[img');
 311         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 312         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 313         while (($img_st_close !== false) && ($img_end !== false)) {
 314
 315                 $img_st_close++; // make it point to AFTER the closing bracket
 316                 $img_end += $img_start;
 317
 318                 if (! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
 319                         // This is an embedded image
 320
 321                         $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
 322                         $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
 323
 324                         $cnt++;
 325                 }
 326                 else
 327                         $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
 328
 329                 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
 330
 331                 if ($orig_body === false) // in case the body ends on a closing image tag
 332                         $orig_body = '';
 333
 334                 $img_start = strpos($orig_body, '[img');
 335                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 336                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 337         }
 338
 339         $new_body = $new_body . $orig_body;
 340
 341         return array('body' => $new_body, 'images' => $saved_image);
 342 }}
 343
 344 if (! function_exists('bb_replace_images')) {
 345 function bb_replace_images($body, $images) {
 346
 347         $newbody = $body;
 348
 349         $cnt = 0;
 350         foreach ($images as $image) {
 351                 // We're depending on the property of 'foreach' (specified on the PHP website) that
 352                 // it loops over the array starting from the first element and going sequentially
 353                 // to the last element
 354                 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . proxy_url($image) .'" alt="' . t('Image/photo') . '" />', $newbody);
 355                 $cnt++;
 356         }
 357
 358         return $newbody;
 359 }}
 360
 361 function bb_ShareAttributes($share, $simplehtml) {
 362         $attributes = $share[2];
 363
 364         $author = "";
 365         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 366         if ($matches[1] != "")
 367                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 368
 369         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 370         if ($matches[1] != "")
 371                 $author = $matches[1];
 372
 373         $profile = "";
 374         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 375         if ($matches[1] != "")
 376                 $profile = $matches[1];
 377
 378         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 379         if ($matches[1] != "")
 380                 $profile = $matches[1];
 381
 382         $avatar = "";
 383         preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 384         if ($matches[1] != "")
 385                 $avatar = $matches[1];
 386
 387         preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 388         if ($matches[1] != "")
 389                 $avatar = $matches[1];
 390
 391         $link = "";
 392         preg_match("/link='(.*?)'/ism", $attributes, $matches);
 393         if ($matches[1] != "")
 394                 $link = $matches[1];
 395
 396         preg_match('/link="(.*?)"/ism', $attributes, $matches);
 397         if ($matches[1] != "")
 398                 $link = $matches[1];
 399
 400         $posted = "";
 401
 402         $itemcache = get_itemcachepath();
 403
 404         preg_match("/posted='(.*?)'/ism", $attributes, $matches);
 405         if ($matches[1] != "")
 406                 $posted = $matches[1];
 407
 408         preg_match('/posted="(.*?)"/ism', $attributes, $matches);
 409         if ($matches[1] != "")
 410                 $posted = $matches[1];
 411
 412         // relative dates only make sense when they aren't cached
 413         if ($itemcache == "")
 414                 $reldate = (($posted) ? " " . relative_date($posted) : '');
 415
 416         // We only call this so that a previously unknown contact can be added.
 417         // This is important for the function "get_contact_details_by_url".
 418         // This function then can fetch an entry from the contact table.
 419         get_contact($profile, 0);
 420
 421         $data = get_contact_details_by_url($profile);
 422
 423         if (isset($data["name"]) AND ($data["name"] != "") AND isset($data["addr"]) AND ($data["addr"] != ""))
 424                 $userid_compact = $data["name"]." (".$data["addr"].")";
 425         else
 426                 $userid_compact = GetProfileUsername($profile,$author, true);
 427
 428         if (isset($data["addr"]) AND ($data["addr"] != ""))
 429                 $userid = $data["addr"];
 430         else
 431                 $userid = GetProfileUsername($profile,$author, false);
 432
 433         if (isset($data["name"]) AND ($data["name"] != ""))
 434                 $author = $data["name"];
 435
 436         if (isset($data["micro"]) AND ($data["micro"] != ""))
 437                 $avatar = $data["micro"];
 438
 439         $preshare = trim($share[1]);
 440
 441         if ($preshare != "")
 442                 $preshare .= "<br /><br />";
 443
 444         switch ($simplehtml) {
 445                 case 1:
 446                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' <a href="'.$profile.'">'.$userid."</a>: <br />»".$share[3]."«";
 447                         break;
 448                 case 2:
 449                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
 450                         break;
 451                 case 3: // Diaspora
 452                         $headline .= '<b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').$userid.':</b><br />';
 453
 454                         $text = trim($share[1]);
 455
 456                         if ($text != "")
 457                                 $text .= "<hr />";
 458
 459                         if (substr(normalise_link($link), 0, 19) != "http://twitter.com/") {
 460                                 $text .= $headline.'<blockquote>'.trim($share[3])."</blockquote><br />";
 461
 462                                 if ($link != "")
 463                                         $text .= '<br /><a href="'.$link.'">[l]</a>';
 464                         } else
 465                                 $text .= '<br /><a href="'.$link.'">'.$link.'</a>';
 466
 467                         break;
 468                 case 4:
 469                         $headline = '<div class="shared_header">';
 470                         $headline .= '<span><b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
 471                         $headline .= sprintf(t('<a href="%1$s" target="_blank">%2$s</a> %3$s'), $link, $userid, $posted);
 472                         $headline .= ":</b></span></div>";
 473
 474                         $text = trim($share[1]);
 475
 476                         if ($text != "")
 477                                 $text .= "<hr />";
 478
 479                         $text .= $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote><br />";
 480
 481                         break;
 482                 case 5:
 483                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
 484                         break;
 485                 case 6: // app.net
 486                         $text = $preshare."&gt;&gt; @".$userid_compact.": <br />".$share[3];
 487                         break;
 488                 case 7: // statusnet/GNU Social
 489                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8')." @".$userid_compact.": ".$share[3];
 490                         break;
 491                 case 8: // twitter
 492                         $text = $preshare."RT @".$userid_compact.": ".$share[3];
 493                         break;
 494                 case 9: // Google+/Facebook
 495                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
 496
 497                         if ($link != "")
 498                                 $text .= "<br /><br />".$link;
 499                         break;
 500                 default:
 501                         $text = trim($share[1])."\n";
 502
 503                         $avatar = proxy_url($avatar, false, PROXY_SIZE_THUMB);
 504
 505                         $tpl = get_markup_template('shared_content.tpl');
 506                         $text .= replace_macros($tpl,
 507                                         array(
 508                                                 '$profile' => $profile,
 509                                                 '$avatar' => $avatar,
 510                                                 '$author' => $author,
 511                                                 '$link' => $link,
 512                                                 '$posted' => $posted,
 513                                                 '$reldate' => $reldate,
 514                                                 '$content' => trim($share[3])
 515                                         )
 516                                 );
 517                         break;
 518         }
 519         return($text);
 520 }
 521
 522 function GetProfileUsername($profile, $username, $compact = false, $getnetwork = false) {
 523
 524         $twitter = preg_replace("=https?://twitter.com/(.*)=ism", "$1@twitter.com", $profile);
 525         if ($twitter != $profile) {
 526                 if ($getnetwork)
 527                         return(NETWORK_TWITTER);
 528                 elseif ($compact)
 529                         return($twitter);
 530                 else
 531                         return($username." (".$twitter.")");
 532         }
 533
 534         $appnet = preg_replace("=https?://alpha.app.net/(.*)=ism", "$1@alpha.app.net", $profile);
 535         if ($appnet != $profile) {
 536                 if ($getnetwork)
 537                         return(NETWORK_APPNET);
 538                 elseif ($compact)
 539                         return($appnet);
 540                 else
 541                         return($username." (".$appnet.")");
 542         }
 543
 544         $gplus = preg_replace("=https?://plus.google.com/(.*)=ism", "$1@plus.google.com", $profile);
 545         if ($gplus != $profile) {
 546                 if ($getnetwork)
 547                         return(NETWORK_GPLUS);
 548                 elseif ($compact)
 549                         return($gplususername." (".$username.")");
 550                 else
 551                         return($username." (".$gplus.")");
 552         }
 553
 554         $friendica = preg_replace("=https?://(.*)/profile/(.*)=ism", "$2@$1", $profile);
 555         if ($friendica != $profile) {
 556                 if ($getnetwork)
 557                         return(NETWORK_DFRN);
 558                 elseif ($compact)
 559                         return($friendica);
 560                 else
 561                         return($username." (".$friendica.")");
 562         }
 563
 564         $diaspora = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
 565         if ($diaspora != $profile) {
 566                 if ($getnetwork)
 567                         return(NETWORK_DIASPORA);
 568                 elseif ($compact)
 569                         return($diaspora);
 570                 else
 571                         return($username." (".$diaspora.")");
 572         }
 573
 574         $red = preg_replace("=https?://(.*)/channel/(.*)=ism", "$2@$1", $profile);
 575         if ($red != $profile) {
 576                 if ($getnetwork)
 577                         // red is identified as Diaspora - friendica can't connect directly to it
 578                         return(NETWORK_DIASPORA);
 579                 elseif ($compact)
 580                         return($red);
 581                 else
 582                         return($username." (".$red.")");
 583         }
 584
 585         $StatusnetHost = preg_replace("=https?://(.*)/user/(.*)=ism", "$1", $profile);
 586         if ($StatusnetHost != $profile) {
 587                 $StatusnetUser = preg_replace("=https?://(.*)/user/(.*)=ism", "$2", $profile);
 588                 if ($StatusnetUser != $profile) {
 589                         $UserData = fetch_url("http://".$StatusnetHost."/api/users/show.json?user_id=".$StatusnetUser);
 590                         $user = json_decode($UserData);
 591                         if ($user) {
 592                                 if ($getnetwork)
 593                                         return(NETWORK_STATUSNET);
 594                                 elseif ($compact)
 595                                         return($user->screen_name."@".$StatusnetHost);
 596                                 else
 597                                         return($username." (".$user->screen_name."@".$StatusnetHost.")");
 598                         }
 599                 }
 600         }
 601
 602         // pumpio (http://host.name/user)
 603         $rest = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$3", $profile);
 604         if ($rest == "") {
 605                 $pumpio = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$2@$1", $profile);
 606                 if ($pumpio != $profile) {
 607                         if ($getnetwork)
 608                                 return(NETWORK_PUMPIO);
 609                         elseif ($compact)
 610                                 return($pumpio);
 611                         else
 612                                 return($username." (".$pumpio.")");
 613                 }
 614         }
 615
 616         return($username);
 617 }
 618
 619 function bb_DiasporaLinks($match) {
 620         return "[url=".App::get_baseurl()."/display/".$match[1]."]".$match[2]."[/url]";
 621 }
 622
 623 function bb_RemovePictureLinks($match) {
 624         $text = Cache::get($match[1]);
 625
 626         if (is_null($text)){
 627                 $a = get_app();
 628
 629                 $stamp1 = microtime(true);
 630
 631                 $ch = @curl_init($match[1]);
 632                 @curl_setopt($ch, CURLOPT_NOBODY, true);
 633                 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 634                 @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
 635                 @curl_exec($ch);
 636                 $curl_info = @curl_getinfo($ch);
 637
 638                 $a->save_timestamp($stamp1, "network");
 639
 640                 if (substr($curl_info["content_type"], 0, 6) == "image/")
 641                         $text = "[url=".$match[1]."]".$match[1]."[/url]";
 642                 else {
 643                         $text = "[url=".$match[2]."]".$match[2]."[/url]";
 644
 645                         // if its not a picture then look if its a page that contains a picture link
 646                         require_once("include/network.php");
 647
 648                         $body = fetch_url($match[1]);
 649
 650                         $doc = new DOMDocument();
 651                         @$doc->loadHTML($body);
 652                         $xpath = new DomXPath($doc);
 653                         $list = $xpath->query("//meta[@name]");
 654                         foreach ($list as $node) {
 655                                 $attr = array();
 656
 657                                 if ($node->attributes->length)
 658                                         foreach ($node->attributes as $attribute)
 659                                                 $attr[$attribute->name] = $attribute->value;
 660
 661                                 if (strtolower($attr["name"]) == "twitter:image")
 662                                         $text = "[url=".$attr["content"]."]".$attr["content"]."[/url]";
 663                         }
 664                 }
 665                 Cache::set($match[1],$text);
 666         }
 667         return($text);
 668 }
 669
 670 function bb_expand_links($match) {
 671         if (($match[3] == "") OR ($match[2] == $match[3]) OR stristr($match[2], $match[3]))
 672                 return ($match[1]."[url]".$match[2]."[/url]");
 673         else
 674                 return ($match[1].$match[3]." [url]".$match[2]."[/url]");
 675 }
 676
 677 function bb_CleanPictureLinksSub($match) {
 678         $text = Cache::get($match[1]);
 679
 680         if (is_null($text)){
 681                 $a = get_app();
 682
 683                 $stamp1 = microtime(true);
 684
 685                 $ch = @curl_init($match[1]);
 686                 @curl_setopt($ch, CURLOPT_NOBODY, true);
 687                 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 688                 @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
 689                 @curl_exec($ch);
 690                 $curl_info = @curl_getinfo($ch);
 691
 692                 $a->save_timestamp($stamp1, "network");
 693
 694                 // if its a link to a picture then embed this picture
 695                 if (substr($curl_info["content_type"], 0, 6) == "image/")
 696                         $text = "[img]".$match[1]."[/img]";
 697                 else {
 698                         $text = "[img]".$match[2]."[/img]";
 699
 700                         // if its not a picture then look if its a page that contains a picture link
 701                         require_once("include/network.php");
 702
 703                         $body = fetch_url($match[1]);
 704
 705                         $doc = new DOMDocument();
 706                         @$doc->loadHTML($body);
 707                         $xpath = new DomXPath($doc);
 708                         $list = $xpath->query("//meta[@name]");
 709                         foreach ($list as $node) {
 710                                 $attr = array();
 711
 712                                 if ($node->attributes->length)
 713                                         foreach ($node->attributes as $attribute)
 714                                                 $attr[$attribute->name] = $attribute->value;
 715
 716                                 if (strtolower($attr["name"]) == "twitter:image")
 717                                         $text = "[img]".$attr["content"]."[/img]";
 718                         }
 719                 }
 720                 Cache::set($match[1],$text);
 721         }
 722         return($text);
 723 }
 724
 725 function bb_CleanPictureLinks($text) {
 726         $text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_CleanPictureLinksSub', $text);
 727         return ($text);
 728 }
 729
 730 function bb_highlight($match) {
 731         if (in_array(strtolower($match[1]),['php','css','mysql','sql','abap','diff','html','perl','ruby',
 732                 'vbscript','avrc','dtd','java','xml','cpp','python','javascript','js','sh']))
 733                 return text_highlight($match[2],strtolower($match[1]));
 734         return $match[0];
 735 }
 736
 737         // BBcode 2 HTML was written by WAY2WEB.net
 738         // extended to work with Mistpark/Friendica - Mike Macgirvin
 739
 740 function bbcode($Text,$preserve_nl = false, $tryoembed = true, $simplehtml = false, $forplaintext = false) {
 741
 742         $a = get_app();
 743
 744         // Hide all [noparse] contained bbtags by spacefying them
 745         // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
 746
 747         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
 748         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
 749         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
 750
 751         // Remove the abstract element. It is a non visible element.
 752         $Text = remove_abstract($Text);
 753
 754         // Move all spaces out of the tags
 755         $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text);
 756         $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text);
 757
 758         // Extract the private images which use data urls since preg has issues with
 759         // large data sizes. Stash them away while we do bbcode conversion, and then put them back
 760         // in after we've done all the regex matching. We cannot use any preg functions to do this.
 761
 762         $extracted = bb_extract_images($Text);
 763         $Text = $extracted['body'];
 764         $saved_image = $extracted['images'];
 765
 766         // If we find any event code, turn it into an event.
 767         // After we're finished processing the bbcode we'll
 768         // replace all of the event code with a reformatted version.
 769
 770         $ev = bbtoevent($Text);
 771
 772         // Replace any html brackets with HTML Entities to prevent executing HTML or script
 773         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
 774
 775         $Text = str_replace("<", "&lt;", $Text);
 776         $Text = str_replace(">", "&gt;", $Text);
 777
 778         // remove some newlines before the general conversion
 779         $Text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","[share$1]$2[/share]",$Text);
 780         $Text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism","[quote$1]$2[/quote]",$Text);
 781
 782         $Text = preg_replace("/\n\[code\]/ism", "[code]", $Text);
 783         $Text = preg_replace("/\[\/code\]\n/ism", "[/code]", $Text);
 784
 785         // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
 786         if (!$tryoembed)
 787                 $Text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","\n[share$1$2]$3[/share]",$Text);
 788
 789         // Check for [code] text here, before the linefeeds are messed with.
 790         // The highlighter will unescape and re-escape the content.
 791         if (strpos($Text,'[code=') !== false) {
 792                 $Text = preg_replace_callback("/\[code=(.*?)\](.*?)\[\/code\]/ism", 'bb_highlight', $Text);
 793         }
 794         // Convert new line chars to html <br /> tags
 795
 796         // nlbr seems to be hopelessly messed up
 797         //      $Text = nl2br($Text);
 798
 799         // We'll emulate it.
 800
 801         $Text = trim($Text);
 802         $Text = str_replace("\r\n","\n", $Text);
 803
 804         // removing multiplicated newlines
 805         if (get_config("system", "remove_multiplicated_lines")) {
 806                 $search = array("\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[ul]", "[/ul]\n", "\n\n[share ", "[/attachment]\n",
 807                                 "\n[h1]", "[/h1]\n", "\n[h2]", "[/h2]\n", "\n[h3]", "[/h3]\n", "\n[h4]", "[/h4]\n", "\n[h5]", "[/h5]\n", "\n[h6]", "[/h6]\n");
 808                 $replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]", "\n[share ", "[/attachment]",
 809                                 "[h1]", "[/h1]", "[h2]", "[/h2]", "[h3]", "[/h3]", "[h4]", "[/h4]", "[h5]", "[/h5]", "[h6]", "[/h6]");
 810                 do {
 811                         $oldtext = $Text;
 812                         $Text = str_replace($search, $replace, $Text);
 813                 } while ($oldtext != $Text);
 814         }
 815
 816         // Handle attached links or videos
 817         $Text = bb_attachment($Text, $simplehtml, $tryoembed);
 818
 819         $Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
 820
 821         if ($preserve_nl)
 822                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
 823
 824         // Set up the parameters for a URL search string
 825         $URLSearchString = "^\[\]";
 826         // Set up the parameters for a MAIL search string
 827         $MAILSearchString = $URLSearchString;
 828
 829         // Remove all hashtag addresses
 830         if ((!$tryoembed OR $simplehtml) AND !in_array($simplehtml, array(3, 7)))
 831                 $Text = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $Text);
 832         elseif ($simplehtml == 3)
 833                 $Text = preg_replace("/([@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
 834                         '$1<a href="$2">$3</a>',
 835                         $Text);
 836         elseif ($simplehtml == 7)
 837                 $Text = preg_replace("/([@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
 838                         '$1<span class="vcard"><a href="$2" class="url" title="$3"><span class="fn nickname mention">$3</span></a></span>',
 839                         $Text);
 840         elseif (!$simplehtml)
 841                 $Text = preg_replace("/([@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
 842                         '$1<a href="$2" class="userinfo mention" title="$3">$3</a>',
 843                         $Text);
 844
 845         // Bookmarks in red - will be converted to bookmarks in friendica
 846         $Text = preg_replace("/#\^\[url\]([$URLSearchString]*)\[\/url\]/ism", '[bookmark=$1]$1[/bookmark]', $Text);
 847         $Text = preg_replace("/#\^\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[bookmark=$1]$2[/bookmark]', $Text);
 848         $Text = preg_replace("/#\[url\=[$URLSearchString]*\]\^\[\/url\]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i",
 849                                 "[bookmark=$1]$2[/bookmark]", $Text);
 850
 851         if (in_array($simplehtml, array(2, 6, 7, 8, 9))) {
 852                 $Text = preg_replace_callback("/([^#@])\[url\=([^\]]*)\](.*?)\[\/url\]/ism","bb_expand_links",$Text);
 853                 //$Text = preg_replace("/[^#@]\[url\=([^\]]*)\](.*?)\[\/url\]/ism",' $2 [url]$1[/url]',$Text);
 854                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",' $2 [url]$1[/url]',$Text);
 855         }
 856
 857         if ($simplehtml == 5)
 858                 $Text = preg_replace("/[^#@]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[url]$1[/url]', $Text);
 859
 860         // Perform URL Search
 861         if ($tryoembed)
 862                 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'tryoembed',$Text);
 863
 864         if ($simplehtml == 5)
 865                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url]$1[/url]',$Text);
 866         else
 867                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
 868
 869         // Handle Diaspora posts
 870         $Text = preg_replace_callback("&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi", 'bb_DiasporaLinks', $Text);
 871
 872         // if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
 873 //      if ($simplehtml != 7) {
 874                 if (!$forplaintext)
 875                         $Text = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="_blank">$2</a>', $Text);
 876                 else {
 877                         $Text = preg_replace("(\[url\]([$URLSearchString]*)\[\/url\])ism"," $1 ",$Text);
 878                         $Text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_RemovePictureLinks', $Text);
 879                 }
 880 //      }
 881
 882         if ($tryoembed)
 883                 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
 884
 885         $Text = preg_replace("/([#])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
 886                                 '$1<a href="$2" class="tag" title="$3">$3</a>', $Text);
 887
 888         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$1</a>', $Text);
 889         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
 890         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
 891
 892         // Red compatibility, though the link can't be authenticated on Friendica
 893         $Text = preg_replace("/\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
 894
 895
 896         // we may need to restrict this further if it picks up too many strays
 897         // link acct:user@host to a webfinger profile redirector
 898
 899         $Text = preg_replace('/acct:([^@]+)@((?!\-)(?:[a-zA-Z\d\-]{0,62}[a-zA-Z\d]\.){1,126}(?!\d+)[a-zA-Z\d]{1,63})/', '<a href="' . App::get_baseurl() . '/acctlink?addr=$1@$2" target="extlink">acct:$1@$2</a>',$Text);
 900
 901         // Perform MAIL Search
 902         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
 903         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
 904
 905         // leave open the posibility of [map=something]
 906         // this is replaced in prepare_body() which has knowledge of the item location
 907
 908         if (strpos($Text,'[/map]') !== false) {
 909                 $Text = preg_replace_callback("/\[map\](.*?)\[\/map\]/ism", 'bb_map_location', $Text);
 910         }
 911         if (strpos($Text,'[map=') !== false) {
 912                 $Text = preg_replace_callback("/\[map=(.*?)\]/ism", 'bb_map_coords', $Text);
 913         }
 914         if (strpos($Text,'[map]') !== false) {
 915                 $Text = preg_replace("/\[map\]/", '<div class="map"></div>', $Text);
 916         }
 917
 918         // Check for headers
 919         $Text = preg_replace("(\[h1\](.*?)\[\/h1\])ism",'<h1>$1</h1>',$Text);
 920         $Text = preg_replace("(\[h2\](.*?)\[\/h2\])ism",'<h2>$1</h2>',$Text);
 921         $Text = preg_replace("(\[h3\](.*?)\[\/h3\])ism",'<h3>$1</h3>',$Text);
 922         $Text = preg_replace("(\[h4\](.*?)\[\/h4\])ism",'<h4>$1</h4>',$Text);
 923         $Text = preg_replace("(\[h5\](.*?)\[\/h5\])ism",'<h5>$1</h5>',$Text);
 924         $Text = preg_replace("(\[h6\](.*?)\[\/h6\])ism",'<h6>$1</h6>',$Text);
 925
 926         // Check for paragraph
 927         $Text = preg_replace("(\[p\](.*?)\[\/p\])ism",'<p>$1</p>',$Text);
 928
 929         // Check for bold text
 930         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
 931
 932         // Check for Italics text
 933         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
 934
 935         // Check for Underline text
 936         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
 937
 938         // Check for strike-through text
 939         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
 940
 941         // Check for over-line text
 942         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
 943
 944         // Check for colored text
 945         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
 946
 947         // Check for sized text
 948         // [size=50] --> font-size: 50px (with the unit).
 949         $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px; line-height: initial;\">$2</span>",$Text);
 950         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1; line-height: initial;\">$2</span>",$Text);
 951
 952         // Check for centered text
 953         $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
 954
 955         // Check for list text
 956         $Text = str_replace("[*]", "<li>", $Text);
 957
 958         // Check for style sheet commands
 959         $Text = preg_replace_callback("(\[style=(.*?)\](.*?)\[\/style\])ism","bb_cleanstyle",$Text);
 960
 961         // Check for CSS classes
 962         $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism","bb_cleanclass",$Text);
 963
 964         // handle nested lists
 965         $endlessloop = 0;
 966
 967         while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
 968                ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
 969                ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
 970                ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
 971                 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 972                 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
 973                 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 974                 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
 975                 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
 976                 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
 977                 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
 978                 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 979                 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 980                 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
 981         }
 982
 983         $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
 984         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
 985         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
 986         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
 987
 988         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
 989         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
 990
 991         $Text = str_replace('[hr]','<hr />', $Text);
 992
 993         // This is actually executed in prepare_body()
 994
 995         $Text = str_replace('[nosmile]','',$Text);
 996
 997         // Check for font change text
 998         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
 999
1000         // Declare the format for [code] layout
1001
1002 //      $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
1003
1004         $CodeLayout = '<code>$1</code>';
1005         // Check for [code] text
1006         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
1007
1008         // Declare the format for [spoiler] layout
1009         $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
1010
1011         // Check for [spoiler] text
1012         // handle nested quotes
1013         $endlessloop = 0;
1014         while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
1015                 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
1016
1017         // Check for [spoiler=Author] text
1018
1019         $t_wrote = t('$1 wrote:');
1020
1021         // handle nested quotes
1022         $endlessloop = 0;
1023         while ((strpos($Text, "[/spoiler]")!== false)  and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
1024                 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
1025                                      "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
1026                                      $Text);
1027
1028         // Declare the format for [quote] layout
1029         $QuoteLayout = '<blockquote>$1</blockquote>';
1030
1031         // Check for [quote] text
1032         // handle nested quotes
1033         $endlessloop = 0;
1034         while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
1035                 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
1036
1037         // Check for [quote=Author] text
1038
1039         $t_wrote = t('$1 wrote:');
1040
1041         // handle nested quotes
1042         $endlessloop = 0;
1043         while ((strpos($Text, "[/quote]")!== false)  and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
1044                 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
1045                                      "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
1046                                      $Text);
1047
1048
1049         // [img=widthxheight]image source[/img]
1050         $Text = preg_replace_callback("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", 'bb_PictureCacheExt', $Text);
1051
1052         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
1053         $Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: $1px;" >', $Text);
1054
1055         // Images
1056         // [img]pathtoimage[/img]
1057         $Text = preg_replace_callback("/\[img\](.*?)\[\/img\]/ism", 'bb_PictureCache', $Text);
1058
1059         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
1060         $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
1061
1062         // Shared content
1063         $Text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism",
1064                 function ($match) use ($simplehtml){
1065                         return(bb_ShareAttributes($match, $simplehtml));
1066                 },$Text);
1067
1068         $Text = preg_replace("/\[crypt\](.*?)\[\/crypt\]/ism",'<br/><img src="' .App::get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . t('Encrypted content') . '" /><br />', $Text);
1069         $Text = preg_replace("/\[crypt(.*?)\](.*?)\[\/crypt\]/ism",'<br/><img src="' .App::get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . '$1' . ' ' . t('Encrypted content') . '" /><br />', $Text);
1070         //$Text = preg_replace("/\[crypt=(.*?)\](.*?)\[\/crypt\]/ism",'<br/><img src="' .App::get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . '$1' . ' ' . t('Encrypted content') . '" /><br />', $Text);
1071
1072
1073         // Try to Oembed
1074         if ($tryoembed) {
1075                 $Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '<video src="$1" controls="controls" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></video>', $Text);
1076                 $Text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
1077
1078                 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
1079                 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
1080         } else {
1081                 $Text = preg_replace("/\[video\](.*?)\[\/video\]/",
1082                                         '<a href="$1" target="_blank">$1</a>', $Text);
1083                 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/",
1084                                         '<a href="$1" target="_blank">$1</a>', $Text);
1085         }
1086
1087         // html5 video and audio
1088
1089
1090         if ($tryoembed)
1091                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
1092         else
1093                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
1094
1095         // Youtube extensions
1096         if ($tryoembed) {
1097                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
1098                 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
1099                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
1100         }
1101
1102         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1103         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1104         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1105
1106         if ($tryoembed)
1107                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="https://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
1108         else
1109                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism",
1110                                         '<a href="https://www.youtube.com/watch?v=$1" target="_blank">https://www.youtube.com/watch?v=$1</a>', $Text);
1111
1112         if ($tryoembed) {
1113                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1114                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1115         }
1116
1117         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1118         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1119
1120         if ($tryoembed)
1121                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="https://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
1122         else
1123                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism",
1124                                         '<a href="https://vimeo.com/$1" target="_blank">https://vimeo.com/$1</a>', $Text);
1125
1126 //      $Text = preg_replace("/\[youtube\](.*?)\[\/youtube\]/", '<object width="425" height="350" type="application/x-shockwave-flash" data="http://www.youtube.com/v/$1" ><param name="movie" value="http://www.youtube.com/v/$1"></param><!--[if IE]><embed src="http://www.youtube.com/v/$1" type="application/x-shockwave-flash" width="425" height="350" /><![endif]--></object>', $Text);
1127
1128         // oembed tag
1129         $Text = oembed_bbcode2html($Text);
1130
1131         // Avoid triple linefeeds through oembed
1132         $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
1133
1134         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
1135         // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
1136         // Summary (e.g. title) is required, earlier revisions only required description (in addition to
1137         // start which is always required). Allow desc with a missing summary for compatibility.
1138
1139         if ((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
1140                 $sub = format_event_html($ev, $simplehtml);
1141
1142                 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
1143                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
1144                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
1145                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
1146                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
1147                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
1148                 $Text = preg_replace("/\[event\-id\](.*?)\[\/event\-id\]/ism",'',$Text);
1149         }
1150
1151
1152         //replace oneliner <code> with <key>
1153         $Text = preg_replace_callback("|(?!<br[^>]*>)<code>([^<]*)</code>(?!<br[^>]*>)|ism", 'bb_onelinecode_cb', $Text);
1154
1155         // Unhide all [noparse] contained bbtags unspacefying them
1156         // and triming the [noparse] tag.
1157
1158         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
1159         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
1160         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
1161
1162
1163         $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
1164         $Text = preg_replace('/\&\#039\;/','\'',$Text);
1165         $Text = preg_replace('/\&quot\;/','"',$Text);
1166
1167         // fix any escaped ampersands that may have been converted into links
1168         $Text = preg_replace('/\<([^>]*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism', '<$1$2=$3&$4>', $Text);
1169
1170         // sanitizes src attributes (http and redir URLs for displaying in a web page, cid used for inline images in emails)
1171         static $allowed_src_protocols = array('http', 'redir', 'cid');
1172         $Text = preg_replace('#<([^>]*?)(src)="(?!' . implode('|', $allowed_src_protocols) . ')(.*?)"(.*?)>#ism',
1173                              '<$1$2=""$4 class="invalid-src" title="' . t('Invalid source protocol') . '">', $Text);
1174
1175         // sanitize href attributes (only whitelisted protocols URLs)
1176         // default value for backward compatibility
1177         $allowed_link_protocols = Config::get('system', 'allowed_link_protocols', array('ftp', 'mailto', 'gopher', 'cid'));
1178
1179         // Always allowed protocol even if config isn't set or not including it
1180         $allowed_link_protocols[] = 'http';
1181
1182         $regex = '#<([^>]*?)(href)="(?!' . implode('|', $allowed_link_protocols) . ')(.*?)"(.*?)>#ism';
1183         $Text = preg_replace($regex, '<$1$2="javascript:void(0)"$4 class="invalid-href" title="' . t('Invalid link protocol') . '">', $Text);
1184
1185         if ($saved_image) {
1186                 $Text = bb_replace_images($Text, $saved_image);
1187         }
1188
1189         // Clean up the HTML by loading and saving the HTML with the DOM.
1190         // Bad structured html can break a whole page.
1191         // For performance reasons do it only with ativated item cache or at export.
1192         if (!$tryoembed OR (get_itemcachepath() != "")) {
1193                 $doc = new DOMDocument();
1194                 $doc->preserveWhiteSpace = false;
1195
1196                 $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
1197
1198                 $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
1199                 $encoding = '<?xml encoding="UTF-8">';
1200                 @$doc->loadHTML($encoding.$doctype."<html><body>".$Text."</body></html>");
1201                 $doc->encoding = 'UTF-8';
1202                 $Text = $doc->saveHTML();
1203                 $Text = str_replace(array("<html><body>", "</body></html>", $doctype, $encoding), array("", "", "", ""), $Text);
1204
1205                 $Text = str_replace('<br></li>','</li>', $Text);
1206
1207                 //$Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
1208         }
1209
1210         // Clean up some useless linebreaks in lists
1211         //$Text = str_replace('<br /><ul','<ul ', $Text);
1212         //$Text = str_replace('</ul><br />','</ul>', $Text);
1213         //$Text = str_replace('</li><br />','</li>', $Text);
1214         //$Text = str_replace('<br /><li>','<li>', $Text);
1215         //      $Text = str_replace('<br /><ul','<ul ', $Text);
1216
1217         call_hooks('bbcode',$Text);
1218
1219         return trim($Text);
1220 }
1221
1222 /**
1223  * @brief Removes the "abstract" element from the text
1224  *
1225  * @param string $text The text with BBCode
1226  * @return string The same text - but without "abstract" element
1227  */
1228 function remove_abstract($text) {
1229         $text = preg_replace("/[\s|\n]*\[abstract\].*?\[\/abstract\][\s|\n]*/ism", '', $text);
1230         $text = preg_replace("/[\s|\n]*\[abstract=.*?\].*?\[\/abstract][\s|\n]*/ism", '', $text);
1231
1232         return $text;
1233 }
1234
1235 /**
1236  * @brief Returns the value of the "abstract" element
1237  *
1238  * @param string $text The text that maybe contains the element
1239  * @param string $addon The addon for which the abstract is meant for
1240  * @return string The abstract
1241  */
1242 function fetch_abstract($text, $addon = "") {
1243         $abstract = "";
1244         $abstracts = array();
1245         $addon = strtolower($addon);
1246
1247         if (preg_match_all("/\[abstract=(.*?)\](.*?)\[\/abstract\]/ism",$text, $results, PREG_SET_ORDER))
1248                 foreach ($results AS $result)
1249                         $abstracts[strtolower($result[1])] = $result[2];
1250
1251         if (isset($abstracts[$addon]))
1252                 $abstract = $abstracts[$addon];
1253
1254         if ($abstract == "")
1255                 if (preg_match("/\[abstract\](.*?)\[\/abstract\]/ism",$text, $result))
1256                         $abstract = $result[1];
1257
1258         return $abstract;
1259 }
1260 ?>